I made to changes to my existing load. One was kind of by accident and one out of annoyance, but the effect has been great.
I shot the 5 below free standing ay 50 Meters, and as I was just plinking that day I wasn't even trying, so very happy.
My usual Load is : 2.75" Cheddite Cartridge - HS6 Powder - Paper disc - MEC 10z Straight wall Wad - 1oz Lee slug with my "rocket" fin tail Wad.
I have been happy with this and got good groups, but have been having powder leakage past the wad and thats why I have put in the paper disc under the MEC wad
However I have still had some fakes up in the column if bumped around, so in frustration I used a 12g over shot card disc. This worked.
Another thing that changed, and by accident was the hulls. I accidentally bought the 3" and not the 2.75". This gave me a deeper roll crimp.